This POAP was awarded to participants of the 4# Stereum Update & Upkeep Challenge for a validator performing with a S-Tier rating.

This POAP was handed out to participants who registered for the 4# Stereum - Update & Upkeep Challenge.

This POAP was awarded to participants of the 3# Stereum Update & Upkeep Challenge for a validator performing with a S-Tier Rating

This POAP was awarded to participants of the 3# Stereum Update & Upkeep Challenge for a validator performing with an A-Tier Rating

This POAP is handed out to ​participants who registered for the 3# STEREUM - 3# Update & Upkeep Challenge > https://stereum.net/stereum-update-upkeep-challenge/ .